.header {
  z-index: 999;
  background-color: #fff;
  position: sticky;
  top: 0;
}

.title ul li {
  float: left;
}

.title ul li:nth-child(1) a {
  margin-left: 0;
}

.title ul li a {
  position: relative;
  display: block;
  font-size: 12px;
  font-family: cartierFont;
  color: #000;
  margin: 24px 0 0  20px;
}

.title ul li a::after {
  content: '';
  width: 0px;
  height: 1px;
  display: block;
  background-color: #000;
  position: absolute;
  top: 20px;
  left: 0;
  transition: all 0.3s linear;
}

.title ul li a:hover::after {
  width: 100%;
}

.title > a {
  margin: 20px 400px 0 300px;
}

.title .tubiao {
  width: 120px;
  height: 40px;
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(1, 1fr);
  place-items: center;
}

.top-nav {
  border-bottom: 1px solid #d6d1d1;
}

.top-nav ul {
  width: 605px;
  height: 68px;
  margin: 0 auto;
}

.top-nav ul li {
  float: left;
  margin: 20px 16px;
}

.top-nav ul li a {
  position: relative;
  display: block;
  height: 20px;
  font-size: 14px;
  line-height: 20px;
}

.top-nav ul li a::after {
  content: '';
  width: 0px;
  height: 2px;
  display: block;
  background-color: red;
  position: absolute;
  top: 22px;
  left: 0;
  transition: all 0.3s linear;
}

.top-nav ul li:nth-child(9) {
  margin-left: 0;
  border-left: 1px solid #000;
}

.top-nav ul li:nth-child(9):hover a::after {
  width: 0;
}

.top-nav ul li:hover a {
  font-weight: 700;
}

.top-nav ul li:hover a::after {
  width: 100%;
}

.contact {
  display: block;
  margin-top: 550px;
  font-size: 12px;
  background-color: #f5f5f5;
}

.contact ul {
  height: 200px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  place-items: center;
}

.contact ul li {
  position: relative;
  width: 200px;
}

.contact ul li img {
  margin: 0 82px 10px 83px;
}

.contact ul li > div {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.contact ul li > div::after {
  content: '';
  width: 0px;
  height: 1px;
  background-color: #000;
  position: absolute;
  top: 16px;
  left: 0;
  transition: all 0.3s;
}

.contact ul li:hover > div::after {
  width: 100%;
}

.foot-top {
  overflow: hidden;
  height: 250px;
  border-bottom: 1px solid #c4bfbf;
}

.foot-top li {
  width: 300px !important;
  margin: 80px auto;
  box-sizing: border-box;
}

.foot-top li h5 {
  text-align: center;
  padding-bottom: 30px;
  font-size: 14px;
}

.foot-top li input {
  width: 200px;
  height: 28px;
  border-bottom: 1px solid #000;
}

.foot-top li button {
  width: 80px;
  height: 30px;
  color: #fff;
  background-color: #000;
  border: 1px solid #000;
  transition: all 0.3s;
}

.foot-top li button:hover {
  background-color: #fff;
  color: #000;
}

.foot-middle {
  padding: 50px 0;
  height: 350px;
  border-bottom: 1px solid #c4bfbf;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  justify-items: center;
}

.foot-middle ul li {
  line-height: 40px;
}

.foot-middle ul li a {
  position: relative;
  font-size: 12px;
}

.foot-middle ul li a::after {
  content: '';
  width: 0px;
  height: 1px;
  background-color: #000;
  position: absolute;
  bottom: -5px;
  left: 0px;
  transition: all 0.3s;
}

.foot-middle ul li a:hover::after {
  width: 100%;
}

.foot-middle ul li .weixin {
  width: 35px;
  height: 35px;
  margin: 30px 30px 0 0;
}

.foot-middle ul li .weibo {
  width: 35px;
  height: 35px;
  margin: 30px 30px 0 0;
}

.foot-middle ul > h6 {
  font-size: 14px;
}

.foot-bottom .foot-bottom-t {
  width: 460px;
  height: 50px;
  margin: 40px auto;
}

.foot-bottom .foot-bottom-t > div {
  float: left;
}

.foot-bottom .foot-bottom-t > div > img {
  width: 120px;
  height: 35px;
}

.foot-bottom .foot-bottom-t > div:nth-child(2) {
  margin: 0 50px;
}

.foot-bottom .foot-bottom-b {
  height: 60px;
  background-color: #d10e2e;
}

.relation {
  position: fixed;
  bottom: 30px;
  right: 30px;
}

.jiantou-top {
  width: 50px;
  height: 50px;
  border: 1px solid #c4bfbf;
  border-radius: 50%;
  position: fixed;
  bottom: 150px;
  right: 30px;
}

.jiantou-top > img {
  position: absolute;
  bottom: 21px;
  right: 17px;
}

.feedback {
  width: 80px;
  height: 30px;
  background-color: #c4bfbf;
  color: #fff;
  transform: rotate3d(0, 0, 1, 90deg);
  position: fixed;
  right: -28px;
  top: 300px;
  border-radius: 5px;
  border: 0;
}
